Câu 16: CWAP-405: Certified Wireless Analysis Professional

You have deployed a new 802.11ac WLAN for a customer who wants to take advantage of 802.11ac standardized Transmit Beamforming. After the installation you perform a protocol capture to confirm Transmit Beamforming is operating as expected. When analyzing the protocol exchange you observe the beamformer transmits a VHT NDP Announcement frame but you never see the transmitted NDP. What do you conclude from this behavior?

1. A. NDPs are PHY PPDUs which contain no MPDU and therefore will not be displayed in a protocol analyzer. — đáp án hiện tại
2. B. This is normal, 802.11ac includes the NDP within the VHT NDP Announcement.
3. C. This indicates the beamformer is misconfigured.
4. D. This behavior is non-standard and is likely a bug with the current driver.